Drawing sheet glass



Dec.V l5", 1925. '1;565364 J. c. HENDERSON vDRAWING' SHEET GLASS Filed Nov, 12. 1925 6 Sheets-Sheet l Deco 'I J. c.v HENDERSON DRAWING SHEET GLASS Fviled Nov. 12, 1923 6 Sheets-'Sheet Q 'Dur-15; m25.

J. C. HENDERSON DRAWING SHEET GLASS 12. 192s e hens-sheet 4 Filed Nov 1.565.364l J. C. HENDERSON DRAWING SHEET GLASS Filed NOV 12. `19225 6 Sheets-Sheet 5 INVENTOR @www/V.

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A TTORNE Y J.' c. HENDERSON DRAWING SHEET GLASS Filed Nov. 142,` 1923 e sheets-sheet e ,ff/f//fy/ :naar:

ATTORNEY' I to be iptated ieeee es by a worm 37 on'a horizontal shaft 38, this shaft being driven through worin' gearing 39 from a drive shaft Il() ertending in through thel side of the machine. Each ot "the supporting bearings 35 is slidably keyed as at il into the loweifztce of'sumyorting;A beams 42st vthe-sides of the machine. The screwed ends 43 of 'adjusting shaft-s 44: engage internally threaded portions of the bearings 35, and these shafts 44 are adapted from outside `the machine through gearing 45 and the horizontal crossshaft-46. Any suitable means such as crank i7 atv one side of the machine Amay be used to turn the two shafts 44 and simultaneously adjust thebearings toward or from the inner surfaceoiglass sheet l. Supporting Ibeams 4t2, bearings 35, gudgeons 34 and roller 33 'are'ail 'hollow and in communica ntion with one another `as shown in the drawings, so that a cooling fluiclsueh as air may be passed continuously through all of these members to'gp'r-event overheating. 'lilihcn the .drawing of vthesheet isiiist started, it -is usually desirableto have a support for the central portions-of 'the sheet between the side supporting dises-6, 'and at such tiines vroller 33 will -be-'inoved 4out to the position shown in Fig.10;"yHowever,when the n'1a '1, already describe niainsent tifcal run ncl-"until afterthe bending op- ABefore the' chine is in lIlortnl".operation vand teinperatureA conditions have been suitably regu-l iated, the' rol-ler` 55 may be withdrawn from Contact with the sheet, alterwhich the op- 1 eration will be substantially the saine as with .the forni of apparatus shown in Fig.

in the form 4of.apparatus shown in Figs.

l0 tolQ, a suitableupporting and flattening belt ,48, preferably voi lpolished ine-tal, is mounted on.,supportingr rollers t9 so that the ria sheet l will be delivered onto the opper 'Hat surface oi'jthisbelhloopyas the sheet emerges into the hor ontal plane. The upper run of thesuyp rting and flattening y a tlat stationary table belt 48 is supported riihis 50 positionedl withinljthe belt loop.

"table 5O'1nay`-be'cooled by flowingr a cooling liquid.therethrough,orby blowing air as at 5l between:radmtmgbaiiles' I59. ori-the lower.

faceoftabl 0...y .i 4

lVithLanyrjof the* vstorms offtlie invention as above described, it will be otcd that the maincentral -portioi'i'of the glass sheet re- 'rely/ untouched throughout its vereithtionbeen Completed sheet-comes `into contact with `any solid supporting menibers'in the horizontalpiane, 1t

'has sufiici'ently set lso that it is less liable to injury on rits lower tire-polished surface. Claims: l l. That improvement in the-art oi drawing sheet glass, which consists in bending the sheet from; onefplane' to another while unsupportedgexceptl at its ledges, by applying.

lateral tension to the sheet during the bends, ing operation.

9.. That improvement in the art oi' draiw ing sheet glass, which consists in bending the sheet troni one plane' to another while unsupported except at its edges,by cngaging the sheet edges anddrawing the saine forwardlyand outwardly during the bending operation.

'3. That in'iproveinent in the art of drawing; acontinuous sheet-of. glass from a inol ten source,` consisting in iirst drawing the sheet upwardly and then bending the slice into a substantially horizontal plane, the ina-in central portion ot' the sheetbeing unsupported during' the bending operation, while the sheet is subjected to lateral tension uopiied to the edge portions of the sheet.

4. That iniiprovenient in the art of drawing a continuous sheet of glass from a inolten source, consisting in first drawingn the sheet upwardly and then bending the sheet into a substantially horizontal plane, the

inain central portion of the sheet being unu supported during the vbending operation, and the opposite edge portions of the sheet being drawn forwardly with the sheet and also outwardly, away from the center-line of the sheet during thebending operation.

' 5. in' a sheet glass drawing apparatus, means for bending the sheet from one plane to another, comprising means for engagingthe sheet edges and drawing them forwardlyand outwardly during the bending operation.

' 6. in a Asheet glass drawing apparatus, means for conveying the sheet :trom the ver tical to the horizontal plane, comprising a.

spaced pair of discs for supporting the edges of the sheet on their peripheries, and means 'for supporting the discs so that the sheet carrying portions of their peripheries di: verge from one another as they move with the sheet.v

7. in a sheet glass drawing.; apparatus, means for conveying the sheet from the vertical to the horizontal plane, coi'npiising' a spaced pair of discs for supporting the edges ol thes-heetlon theirperipherieS, means for siqoportingl the discs so that the sheet carry ing portions of their peripheries diverge from one unotheras they move with the sheet, and means for adjusting' the supports to vary the :ingle of divergence as desired.

8. In a sheet glass drawing apparatus,l

means for supporting the edges of the` sheetv whileat is aelng bent from the Verheul in the horizonta plane, the'eentrul Bortlon of -the Sheet being unsupported during the' 5 be ding operation, a Cylindrical' roller for v engaglng the inner 51de of the sheet at the top of rts vertlcal run, means for adgustlng this relier inte or oui; of contact wh 'the sheet, and means for internally cuoing this roller. v10

y Signed at Harrison, in the county of Hurlsoxn and State of New Jersey, this 5th day of November, 1923.

JUHN C. HENDERSQN. 

